An enduring mystery (among many mysteries) is the existence of women exhibiting sexual attraction to other women. Unlike male homosexuality, where a likely explanation has been put forth (see Greg Cochran’s “Gay Germ” Hypothesis – An Exercise in the Power of Germs), female same-sex attraction remains the realm of speculation. My previous foray into the... Read More

It's been nearly three years since the JayMan has been chugging away on the innerwebs about all this heritable biological impact on human behavior and society. I thought I would leave a quick snapshot of my most time-honored posts here at JayMan's blog. Now this is only for its life on Wordpress. For about the... Read More

Greg Cochran argues that it is highly likely that exclusive male homosexuality is caused by an infectious agent, likely a virus. As he explains, there are several good reasons to suspect that this is the case, including: the low heritability of male same-sex attraction (0.22) the absence of homosexuality in hunter-gatherer populations the relatively high... Read More

Post edited (5/31/13) See below. As promised, here is my post on this fascinating, and rather mysterious topic. Who doesn't love bisexual women? Before my foray into the HBD world, I thought that that was a trick question. In any case, I'm certainly quite fond of them. :) But bisexuality, or for that matter lesbianism—like... Read More

Updated: 8/30/12. See below. First and foremost welcome to my new blog site! From now on all my posts will on WordPress, All of the posts from my old blog can be found here on the new site, however the old blog will remain active so readers can find my previously linked articles. Please update... Read More